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19330149 = 36443383
BaseRepresentation
bin100100110111…
…1010001100101
31100101001222110
41021233101211
514422031044
61530151233
7323206056
oct111572145
940331873
1019330149
11aa03033
126582519
13400a577
1427d272d
151a6c6b9
hex126f465

19330149 has 4 divisors (see below), whose sum is σ = 25773536. Its totient is φ = 12886764.

The previous prime is 19330141. The next prime is 19330151. The reversal of 19330149 is 94103391.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 94103391 = 331367797.

It is not a de Polignac number, because 19330149 - 23 = 19330141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19330141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3221689 + ... + 3221694.

It is an arithmetic number, because the mean of its divisors is an integer number (6443384).

Almost surely, 219330149 is an apocalyptic number.

It is an amenable number.

19330149 is a deficient number, since it is larger than the sum of its proper divisors (6443387).

19330149 is an equidigital number, since it uses as much as digits as its factorization.

19330149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6443386.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 19330149 is about 4396.6065323156. The cubic root of 19330149 is about 268.3768599153.

It can be divided in two parts, 193301 and 49, that multiplied together give a palindrome (9471749).

The spelling of 19330149 in words is "nineteen million, three hundred thirty thousand, one hundred forty-nine".

Divisors: 1 3 6443383 19330149